I hope that with "... much more friendly response ..." doesn't mean that my answer was not friendly. I tried to help as fast as requested. And I'm sure that the above code does delete files which match the pattern. I think, I was also polite not using a path of e.g. /etc/sysconfig/*.conf in my example. But I asumed that qwerty80 would take the 15 seconds to look at the code trying to understand as it took me more than 15 seconds to write an answer.
UPDATE: A ++ for ELISHEVA for being much more polite and friendly as it could be expected by the way it was asked.